SI-3403 Clamp-on Ultrasonic Flow Meter

SI-3403 Clamp on Ultrasonic Flow Meter, also called the wall mounted ultrasonic flow meter.

With the remote mount transmitter,
SI-3403 Clamp on Ultrasonic Flow Meter, could be applied to a variety of liquid applications.
ultra pure liquids, water, chemicals,
raw sewage, reclaimed water, cooling water,
river water, plant effluent, alchole, beer, etc.
Temp. range-30~160℃
ProtectionHost:IP67;flow sensor:IP68
Flow rate0~±7m/s,Forward and backward measurement
Liquid typewater,sea water ,alcohol,Acid and alkali,waste water,beer,all kinds of oil Single liquid can transmit sound wave.
  • Accuracy: 1%
  • Ingress protection level: IP67 (transmitter), IP68 (sensor)
  • Wide measurement range, pipe size from DN15mm to DN6000mm.
  • Three installation types: wall mounting, DIN-rail mounting, explosion-proof box mounting
  • Could operate with temperature sensors for heat/energy measurement.
  • Could be installed without shut down equipment operation


ItemsPerformance & Parameter
      HostPrincipleTransit- time ultrasonic flowmeter
Display2X20 character LCD with backlight, support the language of Chinese, English and Italy
Signal Output1 way 4~20mA output, electric resistance 0~ 1K, accuracy 0. 1%(optional);1 way OCT pulse output(Pulse width 6~1000ms, default is 200ms); 1 way Relay output
Signal Input3 way 4~20mA input, accuracy 0. 1%, acquisition signal such as temperature, press and liquid level; Connect the temperature transducer Pt100, can finish the heat/energy measurement
Data InterfaceInsulate Rs485 serial interface, upgrade the flowmeter software by computer, support the MODBUS
Special CableTwisted-pair cable, generally, the length under 50 meters ; Select the RS485, transmission distance can over 1000m
Pipe Installation Condition Pipe MaterialSteel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed
Pipe DiameterDN32~6000mm
Straight PipeTransducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump
Measuring MediumMediumwater,sea water ,alcohol,Acid and alkali,waste water,beer,all kinds of oil Single liquid can transmit sound wave.
TurbidityNo more than 10000ppm and less bubble
Flowrate0~±7m/s,Forward and backward measurement
Work environmentProtection gradeHost:IP67;flow sensor:IP68
temperatureHost:-20~60℃;flow sensor:-30~ 160℃
HumidityHost: 85%RH; Flow sensor:can measure under water, water depth^2m (tansducer sealed glue)
Power SupplyDC8~36V or AC85~264V
Power Consumption1.5W

Clamp on Ultrasonic Flow Meter dimension

In addition to regular products, we support customization

Flow Sensors

Flow Sensors

Temperature Sensors

Temperature Sensors

 TransmitterSensorDiameter  DN( mm)Pipe materialPressure  MpaCable  length   mTemp. sensorSD card
SI-3403 TSDN XX0 Carbon steelXX MpaXX mNone0 YES
 Wall Mounted typeTM 1 Stainless steelCT-11 NO
 TL2 Cast ironTCT-1 
 TS-HT3 Glass fiberPCT-1 
 TL-HT5 Cement  
 TC-16 Others  

Example: SI-3403 + TM + DN300 + 0 + 1.6 MPa + 10m + PCT-1
Means: Standard configuration = SI-3403 (transmitter) + TM + 5m cable + Steel belt (DN200) + Couplant (1pc)

Water, sea water,

alcohol, Acid and alkali,

waste water,beer,

all kinds of oil Single liquid can transmit sound wave.


March 19, 2019 at 13:08 pm


 Good for our pipe water flow measurement, without breaking the pipe or stopping the water supply. Thank you for your fast delivery !

Techincal Support

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